Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 10, Issue 6, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2022.108721
Keywords
Flower-like; Catalytic atenolol degradation; Electrocatalytic oxidation; Methanol; Nitrite
Categories
Funding
- National Research Foundation of Korea (NRF) - Korea government (MSIT)
- [2020R1A2C2012356]
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In this work, flower-like NiCoMn-OH nanostructures were successfully synthesized through a simple chemical bath deposition method. The structures and morphologies of the prepared materials were characterized, and the mechanism for the formation of the flower-like nanostructures was investigated. The prepared materials exhibited excellent catalytic activities for ATL degradation, as well as electrocatalytic oxidation of methanol and nitrite.
In this work, flower-like ternary nickel-cobalt-manganese hydroxide (NiCoMn-OH; NCM) was synthesized through a simple chemical bath deposition in presence of ammonium persulfate (APS) as a catalyst at low temperature. The structures and morphologies of the prepared materials were studied by various analytical methods. The mechanism for the formation of NCM flower-like nanostructure was investigated in detail by various optimization studies. The prepared materials were used for the tri-functional applications including catalytic atenolol (ATL) degradation, electrocatalytic oxidation of methanol and nitrite. The NCM catalyzed peroxomonosulfate (PMS) activation for ATL degradation was investigated. Moreover, when the NCM was used as an electrocatalyst for methanol electrooxidation, the NCM electrode exhibited an excellent catalytic rate constant (0.223 x 104 cm3.mol-1.s- 1) and long-term stability. Further, as an electro-catalyst for nitrite electro-oxidation, the NCM exhibited good sensitivity (532 mu A mu M-1 cm-2), detection limit (1.0 mu M (S/N = 3)), and wide linear range (up to 8.3 mM).
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